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Relational learning in glaucous-winged gulls (Larus glaucescens)
Tatyana A Obozova1, Anna A Smirnova, Zoya A Zorina
1Department of Higher Nervous Activity, Lomonosov Moscow State University, 119899, Vorob'evy gory, 1-12, Moscow, Russia. obozovat@mail.ru
The Spanish Journal of Psychology
|November 20, 2012
Summary
Glaucous-winged gulls demonstrated relative size generalization but struggled with novel categories, showing preconceptual abilities akin to pigeons. Their cognitive flexibility is less than that of crows or parrots.
Area of Science:
- Animal Cognition
- Avian Behavior
- Comparative Psychology
Background:
- Investigating cognitive abilities in wild bird populations presents unique challenges.
- Glaucous-winged gulls (Larus glaucescens) in the Komandorsky Reserve exhibit low fear of humans, facilitating in-situ research.
- Individual recognition of birds at nest sites enables detailed cognitive assessments.
Purpose of the Study:
- To experimentally assess the cognitive abilities of glaucous-winged gulls in their natural habitat.
- To investigate the capacity for relative size generalization in this species.
- To compare gull cognitive abilities with other avian species.
Main Methods:
- An experimental approach was developed for cognitive testing within a gull colony.
- Twenty-four individually recognized gulls were tested on their ability to discriminate and generalize stimulus properties.
- Tasks involved learning stimulus pairs based on size, then transferring this rule to novel stimuli.
Main Results:
- Gulls successfully learned to discriminate 'larger' or 'smaller' in simple pairs.
- Limited success was observed when transferring rules to novel combinations of familiar stimuli.
- Gulls mastered generalization to novel stimuli within familiar categories (color, shape) but not to novel categories (number).
Conclusions:
- Glaucous-winged gulls exhibit preconceptual generalization abilities, comparable to pigeons.
- Their cognitive flexibility in generalization is less advanced than in larger-brained birds like crows and parrots.
- The study highlights species-specific differences in avian cognitive capacities for generalization.
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